The planet Androzani Minor, the distant future. In the planets' caves war rages between government troops and the android warriors of the mysterious Sharaz Jek. But what makes spectrox, the substance they battle to control, so valuable? And how far will the Doctor go to protect his companion?

The planet Skaro, the distant past. The Time Lords divert the Doctor, Sarah and Harry to this war-torn world, and give the Doctor a mission: the evil of the Daleks is about to be born here, and the Doctor is to avert or change their creation.

London, the 1890s. As magician Li H'Sen Chang captivates audiences, a spate of disappearances amongst young women goes largely unnoticed. But almost upon their arrival, the Doctor and Leela find themselves confronting the feared Tong of the Black Scorpion, and a menace from another time. And there's something fishy in the sewers, too...moreless

Not one, but two factions of Daleks have arrived in 1963 London. Their objective is a mysterious object from the Doctor's past. It will be all he can do to keep the humans from getting killed in the crossfire…

Ronson fills the Doctor and Harry in on the development of the Dalek and asks for their help in stopping its development. Meanwhile, Sarah is made a slave in the Thal dome and must escape before she is poisoned to death…

Sutekh forces the Doctor to bring Scarman to Mars to free his master. Once released from Sutekh's mind control, the Time Lord races against time to stop the Osirian from escaping his imprisonment and launching a bloody campaign of destruction across the universe.

England, 1911. The TARDIS is drawn off-course and lands in the country house of archaeologist Marcus Scarman. But what did Scarman unearth on his last visit to Egypt, and how can the Doctor defeat his most powerful foe yet - Sutekh, the God of Destruction?

England, 1911. The TARDIS is drawn off-course and lands in the country house of archaeologist Marcus Scarman. But what did Scarman unearth on his last visit to Egypt, and how can the Doctor defeat his most powerful foe yet - Sutekh, the God of Destruction?

England, 1911. The TARDIS is drawn off-course and lands in the country house of archaeologist Marcus Scarman. But what did Scarman unearth on his last visit to Egypt, and how can the Doctor defeat his most powerful foe yet - Sutekh, the God of Destruction?

The alien space station J7, the mid-1980s Earth time. The Time Lords have sent the second Doctor and Jamie here to try to stop dangerous experiments into time travel. But the station comes under attack from the Sontarans, and far away in space and time the sixth Doctor goes into psychic shock…moreless

Gallifrey, planet of the Time Lords. The Death Zone, where the ancient Gallifreyans once staged gladiatorial games between alien races from throughout the universe, has been reactivated. No less than three of the Doctor's former incarnations and several of his companions are brought here. But why? And who is the Player in the Game of Rassilon?moreless

England, 1883. The Doctor brings Ace to a house called Gabriel Chase. But strange things are going on in the house. A deranged explorer searches the halls, the odd owner promotes his theories and something dangerous lurks in the cellar…

Southern England, 1981. The universe has been saved, but at the cost of the fourth Doctor's life. The newly-regenerated fifth Doctor must rely on his friends to survive as the regeneration threatens to fail…

England, the near future. The Krynoid grows to monstrous size and traps the Doctor and the others in a cottage. The creature demands that the Doctor be turned over to it, while Chase seeks to make an alliance with the alien vegetation.

England, 1983. The Doctor discovers a starship trapped in orbit. Public schoolboy Turlough is given an offer by the Black Guardian: he can have that which he most desires, in return for the murder of the Doctor…

The parallel Inferno has broken through the Earth's crust, unleashing terrible seismic forces and dooming the planet. The Doctor hopes to return and save his world. But the bestial primords are closing in...

The Doctor forces a confrontation with the powers controlling the Greatest Show in the Galaxy. But it's a race against time as Ace and Kingpin try to retrieve the one weapon he can use against the fearsome Gods of Ragnarok.

As the Doctor tries to avoid the firing squad and rescue his companions, the situation becomes stranger and stranger. Why can no one remember events before the war? And what are the strange devices in General Smythe's office?

The Antarctic, the near future. A strange seed-pod is unearthed from 20-thousand-year-old ice. The Doctor and Sarah go to investigate, but are too late to prevent the pod infecting a scientist and unleashing a threat to all animal life on Earth...

London's Docklands, 1984. Why are uniformed policemen gunning down strangely-dressed vagrants in broad daylight? A prison ship in the far future - who is the sole prisoner aboard the craft? And why are these two locations linked by the time corridor the TARDIS has been sucked into?

An unnamed world, an unknown time. A vast mining vessel trawls a sea of mineral sand for valuable ores, the tiny human crew served by an army of humanoid robots. But as the Doctor and Leela arrive, one of the crew is found murdered... and if they didn't do it, who did?moreless

The President of the High Council has been killed and the Doctor is the prime suspect. The Time Lords are eager to dispense quick justice and the Doctor must race agains the clock to discover the truth... and an old enemy.

Gallifrey, planet of the Time Lords. Summoned home by a premonition of murder, the Doctor discovers a dark conspiracy at the highest levels of Time Lord society... and his oldest enemy, who poses a threat to the existence of Gallifrey itself...

The Indian Ocean, 1935 — or is it? The Doctor and Jo arrive on the SS Bernice, a ship due to mysteriously vanish without trace. But why do events seem to repeat themselves, and why is a plesiosaur attacking the ship? Meanwhile, on the planet Inter Minor, travelling showman Vorg arrives with his remarkable Miniscope…moreless

England, the near future. The Doctor, Sarah Jane, and Scorby are trapped in the manor as a possessed Chase stalks them from within, while the gigantic Krynoid prepares to crush them from without. Worse, the alien plant is ready to germinate, spreading its seeds across England.

Wales, the near future. While the Doctor finally gets to visit Metebelis Three, Jo and UNIT investigate a spate of strange deaths near Global Chemicals' plant. What effect has the company's toxic waste had on the local wildlife…?

Earth, the near future. Diplomat Sir Reginald Styles has started seeing ghosts at his country mansion - an alarming development given the precarious international situation and his position as possibly the only man capable of stopping the Third World War. The Doctor and Jo go ghost-hunting - but are these ghosts from the past or the future?

The Antarctic, the near future. A strange seed-pod is unearthed from million-year-old ice and infects one of the base staff. Complicating matters, two employees of the millionnaire Harrison Chase arrive and will stop at nothing to get hold of the second seed-pod.

London, 1985. The alien mercenary Lytton has been stranded here for nearly a year, but now he has a plan to escape. But how does it involve the Doctor's old enemies - and why are they on Earth at this point in history?

Italy, 1492. Not realising the TARDIS has been infiltrated by the malevolent Mandragora Helix, the Doctor and Sarah arrive in the tiny duchy of San Martino. With the locals preoccupied by the struggle for the Dukedom, will the time travellers be able to resist a force that threatens to drag Earth into a new Dark age?moreless

The Doctor returns to a Tibetan monastery which he hasn't visited for 300 years, only to be accused of murder. The legendary Yeti, normally timid and elusive creatures, have suddenly become vicious and savage, and many monks and visitors to the monastery have been killed. The Doctor faces suspicion from the monks and from the British explorer Travers, who's determined to prove that the Yeti exist and initially fears that the Doctor is from a rival expedition. Eventually the Doctor discovers that the savage Yeti are robots, built by an alien Intelligence who has possessed one of the monks. The Intelligence claims that it only wants physical being – but in fact, its new physical form will consume the entire Earth unless stopped.moreless

Italy, 1492. Not realising the TARDIS has been infiltrated by the malevolent Mandragora Helix, the Doctor and Sarah arrive in the tiny duchy of San Martino. With the locals preoccupied by the struggle for the Dukedom, will the time travellers be able to resist a force that threatens to drag Earth into a new Dark Age?moreless

The quest for the Third Segment has landed the Doctor and Romana in the midst of a druidic cult centered on a stone circle. But the stones are not what they seem. And somewhere out there is a blood-thirsty Celtic goddess.

The Doctor, Jamie and Victoria arrive at an outpost drilling for natural gas in the North Sea. Mysterious heartbeat sounds are echoing through the pipes, there have been drops in pressure, and contact has been lost with several offshore rigs. Victoria is attacked by a monstrous form of living seaweed, and some of the base personnel are possessed by the poisonous Weed, which stings them and draws them under its control. As the Weed steps up its attack on the base, the Doctor discovers that it's vulnerable to high-frequency sounds, and drives it off with the help of Victoria's screams – amplified by his trusty new invention, the sonic screwdriver. However, Victoria has had enough, and she chooses to remain on Earth, albeit a century after her own time.moreless

The Doctor is able to imitate the world leader Salamander but is suspicious of Kent's motives. Jamie and Victoria are sent to investigate Salamander, who is already putting in motion a plan to control central Europe…

The planet Manussa, an unknown time. Tegan steers the TARDIS here without consciously meaning to — but why? And is it a coincidence that the planet is about to celebrate the 500th anniversary of the expulsion of the insidious Mara?

Lanzarote, 1985. Archaeologist Howard Foster raises a strange metal artefact from the sea floor. But how is it linked to the signal the TARDIS received? Why is Turlough suddenly so worried? And why is Kamelion acting so erratically?

The Doctor, Jamie and Victoria arrive at an outpost drilling for natural gas in the North Sea. Mysterious heartbeat sounds are echoing through the pipes, there have been drops in pressure, and contact has been lost with several offshore rigs. Victoria is attacked by a monstrous form of living seaweed, and some of the base personnel are possessed by the poisonous Weed, which stings them and draws them under its control. As the Weed steps up its attack on the base, the Doctor discovers that it's vulnerable to high-frequency sounds, and drives it off with the help of Victoria's screams – amplified by his trusty new invention, the sonic screwdriver. However, Victoria has had enough, and she chooses to remain on Earth, albeit a century after her own time.moreless

England, the 1820s. As the Industrial Revolution gathers pace, the village of Killingworth is disturbed by crazed miners intent on smashing all machinery and engineers. But is there another cause of the situation?

England, the late 1970s. At Fetch Priory, Dr Fendelman's experiments with the new Time Scanner are disrupted by the mysterious death nearby of a hiker. Then there's the mysterious skull, also being used as part of his work--a skull that seems to predate the evolution of mankind. What is the true role of the Fendahl in humanity's evolution?moreless

England: The 20th Century. After they return from England after their Antarctic ordeal, Chase tries to eliminate the Doctor and Sarah Jane, but they escape and track him down at his estate, where he is preparing to open the Krynoid pod.

Italy, 1492. Not realising the TARDIS has been infiltrated by the malevolent Mandragora Helix, the Doctor and Sarah arrive in the tiny duchy of San Martino. With the locals preoccupied by the struggle for the Dukedom, will the time travellers be able to resist a force that threatens to drag Earth into a new Dark Age?moreless

Jamie and Arden go off into the ice to investigate the Ice Warrior ship and possibly rescue Victoria. Meanwhile, the Doctor tries to find a solution to prevent all of Europe from being crushed under the advancing ice…

England, the near future. Exiled to the 20th century by the Time Lords, the newly-regenerated Doctor is immediately caught up in UNIT's investigation of anomalous meteorite showers. What dark secret does the local plastics factory hold?

The Doctor begins to investigate the mysteriously wealthy planet Zanak. Mentiads, a deranged Captain, strange omens, miraculous mines – what does it all mean? And what does it have to do with the Key to Time?

The Doctor returns to a Tibetan monastery which he hasn't visited for 300 years, only to be accused of murder. The legendary Yeti, normally timid and elusive creatures, have suddenly become vicious and savage, and many monks and visitors to the monastery have been killed. The Doctor faces suspicion from the monks and from the British explorer Travers, who's determined to prove that the Yeti exist and initially fears that the Doctor is from a rival expedition. Eventually the Doctor discovers that the savage Yeti are robots, built by an alien Intelligence who has possessed one of the monks. The Intelligence claims that it only wants physical being – but in fact, its new physical form will consume the entire Earth unless stopped.moreless

England, the near future. Exiled to the 20th century by the Time Lords, the newly-regenerated Doctor is immediately caught up in UNIT's investigation of anomalous meteorite showers. What dark secret does the local plastics factory hold?

The TARDIS arrives on the plains of Asia Minor during the Trojan War, and when the Doctor emerges the credulous Achilles mistakes him for Zeus. The brutal Odysseus finds this highly unlikely, especially when he catches Steven trying to rescue his friend. When the TARDIS disappears, and the Doctor is thus unable to present a miracle to the Greeks, he is sentenced to death – but Odysseus, intrigued by the newcomers, offers to spare the Doctor's life if he comes up with a way to end the war. The TARDIS has in fact been captured by the Trojans and taken into the city, where Vicki befriends the royal family, adopts the name Cressida – and makes a bitter enemy of the high priestess Cassandra, who feels she has a monopoly on foretelling the future. Outside the city, the Doctor eventually has little choice but to suggest the construction of a large wooden horse, and history takes its unfortunate course. Vicki, who has fallen in love with the Trojan prince Troilus, rescues him from the massacre, and together they join cavalry leader Aeneas and set off to found another city – Rome. Having lost one companion, the Doctor and Steven depart from Troy with a temple handmaiden named Katarina.moreless

The Doctor returns to a Tibetan monastery which he hasn't visited for 300 years, only to be accused of murder. The legendary Yeti, normally timid and elusive creatures, have suddenly become vicious and savage, and many monks and visitors to the monastery have been killed. The Doctor faces suspicion from the monks and from the British explorer Travers, who's determined to prove that the Yeti exist and initially fears that the Doctor is from a rival expedition. Eventually the Doctor discovers that the savage Yeti are robots, built by an alien Intelligence who has possessed one of the monks. The Intelligence claims that it only wants physical being – but in fact, its new physical form will consume the entire Earth unless stopped.moreless

The Daleks and the guerilla opposition fight for control of the Doctor and Earth's history. But what actually happened to set off the catastrophic wars that led to the Dalek invasion? And can it be prevented?

London, 1963. Schoolteachers Ian Chesterton and Barbara Wright are perplexed by the behaviour of one of their pupils, Susan Foreman. When they follow her home, they encounter something beyond their imagining.

The English channel, the 1900s AD. The TARDIS lands on barren Fang Rock, inhabited until now only by three light-house keepers. But what is the strange fog covering the island, and can it be connected to the falling star sighted earlier that night?

England: The 20th century. The Doctor is captured by Chase, who plans to breed the stolen Krynoid pod. The Doctor is placed in an automated compost hopper and only Sarah Jane can save him...but will it be too late before the Krynoid grows to fruition?

The Daleks assemble the leaders of several alien empires, apparently intending to unite them in an Alliance which will then declare war on Earth. In fact, each empire has brought components or technology which the Daleks require to construct the ultimate weapon – a Time Destructor. The last component they require is the power source, a core of the rare element Taranium – and Mavic Chen, the Guardian of the Solar System, intends to supply it to them and then betray them, seizing the Time Destructor for himself. The Doctor and his companions stumble into this affair when the TARDIS materialises on Kembel, and with the aid of Space Security Service agent Bret Vyon, sent to investigate the disappearance of Marc Cory, the Doctor steals the taranium core. The Daleks pursue the Doctor and his companions across the galaxy to get it back, and in the course of the flight the Trojan handmaiden Katarina gives her life to help the Doctor escape from a vicious criminal.moreless

The TARDIS materialises on a deserted rocket in deep space, where the Doctor suffers concussion after an abrupt course change, and he and Jamie are attacked by a hostile servo-robot. Jamie manages to attract attention from a nearby space station, but the crew then attempt to destroy the apparently deserted rocket – and in order to save the TARDIS, Jamie must sabotage the station's asteroid defense laser. He and the Doctor thus face extremly hostile questioning, but the real threat is aboard the space rocket, where two Cybermen are preparing to infiltrate the station, open the way for their army to arrive and use the Wheel as the first stepping stone in an invasion of Earth. After the Cybermen are defeated, the Doctor and Jamie depart with a new companion – computer programmer Zoe Heriot, who finds her ordinary life dull and seeks adventure with them.moreless

England, the near future. Exiled to the 20th century by the Time Lords, the newly-regenerated Doctor is immediately caught up in UNIT's investigation of anomalous meteorite showers. What dark secret does the local plastics factory hold?

The planet Uxarieus, in the year 2472. The Time Lords temporarily reactivate the TARDIS to allow the Doctor and Jo to travel here. They find colonists from Earth struggling to survive on a desolate world, with the rapacious miners of IMC attempting to drive them away. But what happened to the planet's original inhabitants?

Deep space, the distant future: following Earth's devastation by solar flares, the survivors of mankind are in cryogenic suspension aboard the Nerva Beacon space station. The Doctor, Sarah and Harry arrive on board to find the station suffering from mysterious damage and some manner of creature at large…

Scotland, the near future. Something is smashing oil rigs off the Scottish coast, and UNIT have been called in to investigate. The Brigadier summons the Doctor to Earth to help in the investigation, but it soon becomes clear some kind of alien presence is at work...

The Doctor returns to a Tibetan monastery which he hasn't visited for 300 years, only to be accused of murder. The legendary Yeti, normally timid and elusive creatures, have suddenly become vicious and savage, and many monks and visitors to the monastery have been killed. The Doctor faces suspicion from the monks and from the British explorer Travers, who's determined to prove that the Yeti exist and initially fears that the Doctor is from a rival expedition. Eventually the Doctor discovers that the savage Yeti are robots, built by an alien Intelligence who has possessed one of the monks. The Intelligence claims that it only wants physical being – but in fact, its new physical form will consume the entire Earth unless stopped.moreless

England, the near future. Exiled to the 20th century by the Time Lords, the newly-regenerated Doctor is immediately caught up in UNIT's investigation of anomalous meteorite showers. What dark secret does the local plastics factory hold?

The TARDIS materialises on a deserted rocket in deep space, where the Doctor suffers concussion after an abrupt course change, and he and Jamie are attacked by a hostile servo-robot. Jamie manages to attract attention from a nearby space station, but the crew then attempt to destroy the apparently deserted rocket – and in order to save the TARDIS, Jamie must sabotage the station's asteroid defense laser. He and the Doctor thus face extremly hostile questioning, but the real threat is aboard the space rocket, where two Cybermen are preparing to infiltrate the station, open the way for their army to arrive and use the Wheel as the first stepping stone in an invasion of Earth. After the Cybermen are defeated, the Doctor and Jamie depart with a new companion – computer programmer Zoe Heriot, who finds her ordinary life dull and seeks adventure with them.moreless

Deep space, the distant future: following Earth's devastation by solar flares, the survivors of mankind are in cryogenic suspension aboard the Nerva Beacon space station. The Doctor, Sarah and Harry arrive on board and are greeted with suspicion by the awakening survivors… just as the menace of the insectoid Wirrn becomes apparent.moreless

The Doctor, Jamie and Victoria arrive at an outpost drilling for natural gas in the North Sea. Mysterious heartbeat sounds are echoing through the pipes, there have been drops in pressure, and contact has been lost with several offshore rigs. Victoria is attacked by a monstrous form of living seaweed, and some of the base personnel are possessed by the poisonous Weed, which stings them and draws them under its control. As the Weed steps up its attack on the base, the Doctor discovers that it's vulnerable to high-frequency sounds, and drives it off with the help of Victoria's screams – amplified by his trusty new invention, the sonic screwdriver. However, Victoria has had enough, and she chooses to remain on Earth, albeit a century after her own time.moreless

The former prison planet Varos, the future. The downtrodden population of miners are kept happy by real-life violence and murder broadcast live from the Punishment Dome. But then the TARDIS materialises inside the Dome…

Scotland, the near future. Something is smashing oil rigs off the Scottish coast, and UNIT have been called in to investigate. The Doctor discovers a colony of shapeshifting Zygons and their cyborg weapon, the Skarasen, and in the process solves one of Scotland's greatest mysteries...

The Doctor returns to a Tibetan monastery which he hasn't visited for 300 years, only to be accused of murder. The legendary Yeti, normally timid and elusive creatures, have suddenly become vicious and savage, and many monks and visitors to the monastery have been killed. The Doctor faces suspicion from the monks and from the British explorer Travers, who's determined to prove that the Yeti exist and initially fears that the Doctor is from a rival expedition. Eventually the Doctor discovers that the savage Yeti are robots, built by an alien Intelligence who has possessed one of the monks. The Intelligence claims that it only wants physical being – but in fact, its new physical form will consume the entire Earth unless stopped.moreless

The TARDIS materialises on a deserted rocket in deep space, where the Doctor suffers concussion after an abrupt course change, and he and Jamie are attacked by a hostile servo-robot. Jamie manages to attract attention from a nearby space station, but the crew then attempt to destroy the apparently deserted rocket – and in order to save the TARDIS, Jamie must sabotage the station's asteroid defense laser. He and the Doctor thus face extremly hostile questioning, but the real threat is aboard the space rocket, where two Cybermen are preparing to infiltrate the station, open the way for their army to arrive and use the Wheel as the first stepping stone in an invasion of Earth. After the Cybermen are defeated, the Doctor and Jamie depart with a new companion – computer programmer Zoe Heriot, who finds her ordinary life dull and seeks adventure with them.moreless

Earth, the near future. The Doctor visits Stangmoor Prison to see the Keller Machine, a revolutionary new type of rehabilitation aid, in action - but finds his fellow observers literally dying of fear. Who is responsible for creating the Machine? And how does it connect to the peace conference happening in London?

Deep space, the year 2540. The space powers of Earth and Draconia stand at the brink of war, as each seems to be guilty of pirate raids on the others' ships. And the Doctor and Jo are accused of collaborating with the enemy…

The village of Carbury, England, in the late 1990s, where a nuclear missile convoy overseen by UNIT has run into difficulties. Knights in armor bearing energy weapons are descending from space and starting a war that may not even belong to Earth's dimension…

The Doctor and his companions continue to investigate Salamander, trying to find evidence of Kent's accusations that he intends to take over the world. But Salamander's suspicions and schemes are relentless…

The TARDIS materialises on a deserted rocket in deep space, where the Doctor suffers concussion after an abrupt course change, and he and Jamie are attacked by a hostile servo-robot. Jamie manages to attract attention from a nearby space station, but the crew then attempt to destroy the apparently deserted rocket – and in order to save the TARDIS, Jamie must sabotage the station's asteroid defense laser. He and the Doctor thus face extremly hostile questioning, but the real threat is aboard the space rocket, where two Cybermen are preparing to infiltrate the station, open the way for their army to arrive and use the Wheel as the first stepping stone in an invasion of Earth. After the Cybermen are defeated, the Doctor and Jamie depart with a new companion – computer programmer Zoe Heriot, who finds her ordinary life dull and seeks adventure with them.moreless

The TARDIS materialises on a deserted rocket in deep space, where the Doctor suffers concussion after an abrupt course change, and he and Jamie are attacked by a hostile servo-robot. Jamie manages to attract attention from a nearby space station, but the crew then attempt to destroy the apparently deserted rocket – and in order to save the TARDIS, Jamie must sabotage the station's asteroid defense laser. He and the Doctor thus face extremly hostile questioning, but the real threat is aboard the space rocket, where two Cybermen are preparing to infiltrate the station, open the way for their army to arrive and use the Wheel as the first stepping stone in an invasion of Earth. After the Cybermen are defeated, the Doctor and Jamie depart with a new companion – computer programmer Zoe Heriot, who finds her ordinary life dull and seeks adventure with them.moreless

The Daleks assemble the leaders of several alien empires, apparently intending to unite them in an Alliance which will then declare war on Earth. In fact, each empire has brought components or technology which the Daleks require to construct the ultimate weapon – a Time Destructor. The last component they require is the power source, a core of the rare element Taranium – and Mavic Chen, the Guardian of the Solar System, intends to supply it to them and then betray them, seizing the Time Destructor for himself. The Doctor and his companions stumble into this affair when the TARDIS materialises on Kembel, and with the aid of Space Security Service agent Bret Vyon, sent to investigate the disappearance of Marc Cory, the Doctor steals the taranium core. The Daleks pursue the Doctor and his companions across the galaxy to get it back, and in the course of the flight the Trojan handmaiden Katarina gives her life to help the Doctor escape from a vicious criminal.moreless

The Doctor, Jamie and Victoria arrive at an outpost drilling for natural gas in the North Sea. Mysterious heartbeat sounds are echoing through the pipes, there have been drops in pressure, and contact has been lost with several offshore rigs. Victoria is attacked by a monstrous form of living seaweed, and some of the base personnel are possessed by the poisonous Weed, which stings them and draws them under its control. As the Weed steps up its attack on the base, the Doctor discovers that it's vulnerable to high-frequency sounds, and drives it off with the help of Victoria's screams – amplified by his trusty new invention, the sonic screwdriver. However, Victoria has had enough, and she chooses to remain on Earth, albeit a century after her own time.moreless

England, the 12th century. Robber baron Irongron is recruited by Linx, a Sontaran warrior whose starship has been forced down on Earth. Linx is forced to use a time-travel device to steal resources and scientists from the future to repair his ship, but in doing so involves UNIT and the Doctor…moreless

The Doctor, Jamie and Victoria arrive at an outpost drilling for natural gas in the North Sea. Mysterious heartbeat sounds are echoing through the pipes, there have been drops in pressure, and contact has been lost with several offshore rigs. Victoria is attacked by a monstrous form of living seaweed, and some of the base personnel are possessed by the poisonous Weed, which stings them and draws them under its control. As the Weed steps up its attack on the base, the Doctor discovers that it's vulnerable to high-frequency sounds, and drives it off with the help of Victoria's screams – amplified by his trusty new invention, the sonic screwdriver. However, Victoria has had enough, and she chooses to remain on Earth, albeit a century after her own time.moreless

In the 30th century, Earth is experiencing a new Ice Age, and bases all across the world are struggling to hold back the advancing glaciers. Brittanicus Base is running into difficulty and Scientist Arden has found something strange out in the ice …

The TARDIS is in need of repair, but when the Doctor tries to track down an old friend for help he finds himself crossing paths with the sinister International Electromatix corporation – and its cold director, Tobias Vaughn.

England, the near future. The TARDIS materialises in a quarry and Sarah is trapped under a rockfall. But what is the origin of the fossilized hand she is found gripping? And who is the Eldrad she keeps mumbling about?

The TARDIS materialises on a deserted rocket in deep space, where the Doctor suffers concussion after an abrupt course change, and he and Jamie are attacked by a hostile servo-robot. Jamie manages to attract attention from a nearby space station, but the crew then attempt to destroy the apparently deserted rocket – and in order to save the TARDIS, Jamie must sabotage the station's asteroid defense laser. He and the Doctor thus face extremly hostile questioning, but the real threat is aboard the space rocket, where two Cybermen are preparing to infiltrate the station, open the way for their army to arrive and use the Wheel as the first stepping stone in an invasion of Earth. After the Cybermen are defeated, the Doctor and Jamie depart with a new companion – computer programmer Zoe Heriot, who finds her ordinary life dull and seeks adventure with them.moreless

Scotland, the near future. Something is smashing oil rigs off the Scottish coast, and UNIT have been called in to investigate. The Doctor discovers a colony of shapeshifting Zygons and their cyborg weapon, the Skarasen, and in the process solves one of Scotland's greatest mysteries...

England, the near future. Wenley Moor research station is experiencing strange power losses, and off-duty staff have been killed while potholing in the local caves. What ancient force has the station reactor re-energised?

England, the near future. Mike Yates, formerly of UNIT, is disturbed by odd happenings at a monastic retreat. Using Sarah as a liaison, he is able to warn the Doctor and the Brigadier. But how is the Doctor's research into ESP and the blue Metebelis III crystal connected to Mike's warning?moreless

The planet Traken. The Traken union is a society living in perfect harmony, watched over by the powerful but benign Keeper. But now the Keeper is dying, and he senses a great evil within his protectorate. Can the Doctor help him discover the secret of the Melkur?

The Doctor, Jamie and Victoria arrive at an outpost drilling for natural gas in the North Sea. Mysterious heartbeat sounds are echoing through the pipes, there have been drops in pressure, and contact has been lost with several offshore rigs. Victoria is attacked by a monstrous form of living seaweed, and some of the base personnel are possessed by the poisonous Weed, which stings them and draws them under its control. As the Weed steps up its attack on the base, the Doctor discovers that it's vulnerable to high-frequency sounds, and drives it off with the help of Victoria's screams – amplified by his trusty new invention, the sonic screwdriver. However, Victoria has had enough, and she chooses to remain on Earth, albeit a century after her own time.moreless

Trying to escape from a volcanic eruption, the Doctor activates the TARDIS's emergency circuits, taking his ship out of real time and space altogether. However, something in the void is trying to draw them out…

Earth, the distant future. Beaming down from the Nerva Beacon, the Doctor and his friends discover Earth is habitable once more. Unfortunately a Sontaran officer is conducting tests on a group of human colonists to determine their ability to withstand a full-scale invasion...

The TARDIS is stolen from Gatwick Airport, and when the Doctor and Jamie investigate they stumble into a trap set by Edward Waterfield, a time-traveller from the year 1866. His daughter Victoria has been kidnapped by the Daleks, in order to force him to lure the Doctor into their clutches. The Daleks have realised that human beings possess unique qualities which have enabled them to defeat the Daleks on every occasion the two races have fought; thus, the Daleks order the Doctor to monitor Jamie while he attempts to rescue Victoria, and synthesise the elusive Human Factor, which they intend to add to their own genetic makeup. The Doctor does so, and as he'd hoped, the test Daleks imbued with the Human Factor become playful and friendly. However, the Dalek Emperor then reveals that his real intention was to isolate the Dalek Factor and force the Doctor to spread it to the rest of humanity. The Emperor's plan fails, however, as the Doctor is not human and the Dalek Factor has no effect on him. The Doctor therefore tricks the Emperor into administring the Human Factor to several more Daleks, who begin to question authority and rebel against the Emperor. Waterfield dies saving the Doctor's life, and the Doctor and Jamie take Victoria with them as they depart, leaving the Dalek factions to fight each other to the death.moreless

Earth, the near future. The Master - another renegade Time Lord and the Doctor's sworn enemy - arrives and allies himself with the Nestene Consciousness in an attempt to conquer the planet. But how can plastic flowers be an invasion weapon...?

The barren planet Exxilon, some time in the future. The TARDIS is forced down by a total power failure and the Doctor and Sarah meet a stranded Earth crew who came here to mine for priceless medical supplies. But what is causing the power failures?

The TARDIS materialises in Paris in the year 1572, and the Doctor leaves Steven on his own while he visits the apothecary Charles Preslin. However, Preslin faces persecution at the hands of the Catholics, and the Doctor thus comes up with a scheme to get him out of Paris. Steven, meanwhile, falls in with a group of Huguenots who fear that the Catholics are plotting against them, but when Steven recognises the Abbot of Amboise as the Doctor, his Huguenot friends conclude that he's part of the conspiracy. As it happens, the Abbot in fact only looks like the Doctor, but since the Huguenots won't listen to Steven's warnings, the Admiral de Coligny is mortally wounded in an assassination attempt orchestrated by the Queen Mother, Catherine de Medici. When the attempt fails, the Queen Mother manages to convince her weak-willed son that the Huguenots will respond violently, and he authorises the slaughter of all Huguenots within the city. The real Doctor returns, and he and Steven escape just as the St Bartholomew's Day Massacre begins. The TARDIS then materialises briefly in present-day Wimbledon, where a young girl named Dodo Chaplet stumbles aboard the TARDIS and is whisked away on new adventures.moreless

Scotland, the near future. Something is smashing oil rigs off the Scottish coast, and UNIT have been called in to investigate. The aliens responsible, the Zygons, try to kill the Doctor and Sarah Jane, then attempt to recover their signal device using their ability to mimic human beings.

An unnamed planet, the distant future. Arriving in a place that seems oddly familiar, the Doctor finds the savage Sevateem tribe battling to free their captive god, Xoanon, from the Evil One and his Tesh servants. But can the whole situation really be the Doctor's fault?

The Doctor returns to a Tibetan monastery which he hasn't visited for 300 years, only to be accused of murder. The legendary Yeti, normally timid and elusive creatures, have suddenly become vicious and savage, and many monks and visitors to the monastery have been killed. The Doctor faces suspicion from the monks and from the British explorer Travers, who's determined to prove that the Yeti exist and initially fears that the Doctor is from a rival expedition. Eventually the Doctor discovers that the savage Yeti are robots, built by an alien Intelligence who has possessed one of the monks. The Intelligence claims that it only wants physical being – but in fact, its new physical form will consume the entire Earth unless stopped.moreless

The planet Necros, the future. The Doctor arrives for the cryogenic interrment of an old friend at Tranquil Repose, a vast repository of bodies in suspended animation. But what does the 'Great Healer' really have in mind for them?

Deep space, 5000AD. An Earth supply shuttle is infected by a strange sentient space-borne virus, which quickly spreads to the crew of the refuelling station on the moon Titan. Even worse, the Doctor himself falls victim. But why is Leela immune, and what is the virus's ultimate goal?

When the Doctor and his friends arrive on Earth, they find that Chen has already denounced them as traitors, and Vyon is shot and killed by his own sister, Sara Kingdom. Sara eventually discovers the truth for herself, and helps the Doctor and Steven to recover the TARDIS and escape. However, the Daleks then pursue them through Time, and are joined by the Doctor and Steven's old enemy, the Meddling Monk – who realises that he's in over his head and switches sides depending upon who seems to be on top. After an encounter in ancient Egypt, the Doctor strands the Monk on an ice planet, but the Daleks get away with the taranium core, and the Doctor uses the navigational unit from the Monk's TARDIS to pursue them back to Kembel. There, the Daleks exterminate Mavic Chen, but the Doctor manages to activate the Time Destructor. Sara ages to death before she can reach the safety of the TARDIS, but the Doctor and Steven escape while the Dalek force on Kembel crumbles to dust.moreless

With the Doctor now reluctantly admitting to genocide, things look bad. But the Doctor's nemesis, the Master, intervenes, and the real truth behind the trial comes to light - and with it, the shocking secret of the Valeyard's true identity…

England, the near future… perhaps. The TARDIS lands in the woods near Devesham Space Centre, and mysteries abound: soldiers rise from the grave, men lost in deep space are alive and well, and the entire population behaves very oddly indeed. What has happened to Earth — or is the true threat yet to come?

A highly intelligent spider from Metebelis III arrives on Earth in search of the powerful crystal. When it is stolen from his laboratory, the Doctor leads the chase over land, water and air to recover it.

The Doctor arranges to meet his old foe the Master on the planet Tersurus. But when the Doctor arrives, the Master has prepared a series of hideous tortures for him and his lovely assistant, Emma. Horrible tortures. Evil, nasty and decidedly unpleasant tortures…

While the Doctor struggle to complete the Trilogic Game in the minimum number of moves permitted, Steven and Dodo compete against the King and Queen of Hearts to determine which one of seven chairs is safe, when the other six are lethal.

The TARDIS is stolen from Gatwick Airport, and when the Doctor and Jamie investigate they stumble into a trap set by Edward Waterfield, a time-traveller from the year 1866. His daughter Victoria has been kidnapped by the Daleks, in order to force him to lure the Doctor into their clutches. The Daleks have realised that human beings possess unique qualities which have enabled them to defeat the Daleks on every occasion the two races have fought; thus, the Daleks order the Doctor to monitor Jamie while he attempts to rescue Victoria, and synthesise the elusive Human Factor, which they intend to add to their own genetic makeup. The Doctor does so, and as he'd hoped, the test Daleks imbued with the Human Factor become playful and friendly. However, the Dalek Emperor then reveals that his real intention was to isolate the Dalek Factor and force the Doctor to spread it to the rest of humanity. The Emperor's plan fails, however, as the Doctor is not human and the Dalek Factor has no effect on him. The Doctor therefore tricks the Emperor into administring the Human Factor to several more Daleks, who begin to question authority and rebel against the Emperor. Waterfield dies saving the Doctor's life, and the Doctor and Jamie take Victoria with them as they depart, leaving the Dalek factions to fight each other to the death.moreless

The Magellanic Clouds, the planet Ribos, an unknown time. Ordered by the White Guardian to collect the pieces of the omnipotent Key to Time, The Doctor, K-9 and his new assistant Romana arrive. Collecting the first segment is not going to be easy…

The eighth Doctor and former companions Romana and K-9 visit his old friend Professor Chronotis at St. Cedd's College in Cambridge but find adventure and conflict when they come up against Skagra, an intergalactic warlord bent on finding Shada, the legendary prison of the Time Lords, and who has come to earth in search of the one man who knows its location; Professor Chronotis.moreless

The TARDIS is stolen from Gatwick Airport, and when the Doctor and Jamie investigate they stumble into a trap set by Edward Waterfield, a time-traveller from the year 1866. His daughter Victoria has been kidnapped by the Daleks, in order to force him to lure the Doctor into their clutches. The Daleks have realised that human beings possess unique qualities which have enabled them to defeat the Daleks on every occasion the two races have fought; thus, the Daleks order the Doctor to monitor Jamie while he attempts to rescue Victoria, and synthesise the elusive Human Factor, which they intend to add to their own genetic makeup. The Doctor does so, and as he'd hoped, the test Daleks imbued with the Human Factor become playful and friendly. However, the Dalek Emperor then reveals that his real intention was to isolate the Dalek Factor and force the Doctor to spread it to the rest of humanity. The Emperor's plan fails, however, as the Doctor is not human and the Dalek Factor has no effect on him. The Doctor therefore tricks the Emperor into administring the Human Factor to several more Daleks, who begin to question authority and rebel against the Emperor. Waterfield dies saving the Doctor's life, and the Doctor and Jamie take Victoria with them as they depart, leaving the Dalek factions to fight each other to the death.moreless

The TARDIS is stolen from Gatwick Airport, and when the Doctor and Jamie investigate they stumble into a trap set by Edward Waterfield, a time-traveller from the year 1866. His daughter Victoria has been kidnapped by the Daleks, in order to force him to lure the Doctor into their clutches. The Daleks have realised that human beings possess unique qualities which have enabled them to defeat the Daleks on every occasion the two races have fought; thus, the Daleks order the Doctor to monitor Jamie while he attempts to rescue Victoria, and synthesise the elusive Human Factor, which they intend to add to their own genetic makeup. The Doctor does so, and as he'd hoped, the test Daleks imbued with the Human Factor become playful and friendly. However, the Dalek Emperor then reveals that his real intention was to isolate the Dalek Factor and force the Doctor to spread it to the rest of humanity. The Emperor's plan fails, however, as the Doctor is not human and the Dalek Factor has no effect on him. The Doctor therefore tricks the Emperor into administring the Human Factor to several more Daleks, who begin to question authority and rebel against the Emperor. Waterfield dies saving the Doctor's life, and the Doctor and Jamie take Victoria with them as they depart, leaving the Dalek factions to fight each other to the death.moreless

The TARDIS experiences a total power failure and is stranded in the Himalayas in the 13th century. The travellers are forced to join the caravan of the famous explorer, Marco Polo, in order to survive -- but Polo, fascinated by their claims that the TARDIS can fly through the air, seizes it on behalf of Kublai Khan in the hope that presenting the Khan with such a fabulous gift will convince him to let Polo return home to Venice. The travellers are forced to accompany Polo on his long trek across Asia to the Khan's court, but their many attempts to reclaim their property are foiled -- not just by Polo, but by the war lord Tegana, who is apparently on a mission of peace but has entirely different plans for dealing with Kublai Khan...moreless

The storm-lashed planet Karn. Near a graveyard of crashed starships, the demented surgeon Solon hides in his castle, the last acolyte of the Time Lord despot Morbius. He only needs one final item to make his master live again... and then the Doctor and Sarah arrive...

The planet Peladon, some time in the future. The Doctor and Jo arrive just in time to get involved in the conference to discuss Peladon's admission to the Galactic Federation. But the King's closest counsel has been murdered, apparently by a ghost…

The Doctor appears to have transformed into an entirely different person, but Ben and Polly are unsure whether this strange man really is the Doctor or not. They soon have other matters to worry about, as the TARDIS takes them to a human colony on the planet Vulcan. Rebel activity is causing trouble for the colony governor, an Earth Examiner has recently been murdered, and the colony scientist Lesterson is obsessed with his experiments on an alien capsule unearthed from the mercury swamps. The Doctor takes the Examiner's place in order to investigate his murder, but soon discovers that the alien capsule is far more significant – for it contains dormant Daleks which Lesterson has woken. Lesterson believes that the Daleks are harmless robots which can be used to serve the colony, while the rebels are far more interested in the uses of the Daleks' in-built weaponry. Nobody will listen to the Doctor when he warns them that the Daleks have their own agenda – one which could result in the extermination of all human beings in the colony.moreless

Earth, the distant future. Beaming down from the Nerva Beacon, the Doctor and his friends discover Earth is habitable once more. Unfortunately a robot is capturing a group of human soldiers on behalf of its mysterious alien master...

The Doctor and the Shadow have their final confrontation to take control of the Key to Time. Completing it may entail an awful sacrifice. And the Black Guardian will do anything to obtain it and plunge the Universe into chaos.

Pluto, the distant future. The planet has been terraformed and is now orbited by artificial suns, provided by the rapacious company who ruthlessly exploit the relocated human workforce. The Doctor, Leela, and K9 arrive and befriend a luckless drone worker, but they must flee with him to the dark undercity...

The TARDIS arrives on the plains of Asia Minor during the Trojan War, and when the Doctor emerges the credulous Achilles mistakes him for Zeus. The brutal Odysseus finds this highly unlikely, especially when he catches Steven trying to rescue his friend. When the TARDIS disappears, and the Doctor is thus unable to present a miracle to the Greeks, he is sentenced to death – but Odysseus, intrigued by the newcomers, offers to spare the Doctor's life if he comes up with a way to end the war. The TARDIS has in fact been captured by the Trojans and taken into the city, where Vicki befriends the royal family, adopts the name Cressida – and makes a bitter enemy of the high priestess Cassandra, who feels she has a monopoly on foretelling the future. Outside the city, the Doctor eventually has little choice but to suggest the construction of a large wooden horse, and history takes its unfortunate course. Vicki, who has fallen in love with the Trojan prince Troilus, rescues him from the massacre, and together they join cavalry leader Aeneas and set off to found another city – Rome. Having lost one companion, the Doctor and Steven depart from Troy with a temple handmaiden named Katarina.moreless

The Doctor and Romana visit Chronotis, a retired Time Lord living in Cambridge, who admits that he's lost a book dating back to the time of Rassilon and needs their help to find it. In fact he's accidentally lent it out to graduate student Chris Parsons, who soon realises that this is an extraordinary text indeed. The book is also sought by the evil scientist Skagra, who has developed a sphere capable of drawing its victims' minds out of their bodies. Skagra needs the book to reach the Time Lord prison Shada, which even the Time Lords have forgotten. Long ago they imprisoned the criminal Salyavin there, as punishment for using his powers to transfer his mind into other people's bodies. Chronotis is eventually forced to admit that he himself is Salyavin; he escaped long ago and used his powers to cause the Time Lords to forget about his prison. However, he's now repented of his crimes and wishes to live a quiet, peaceful life. Skagra drains Chronotis's mind and thus acquires the ability to transfer his own mind into other bodies; with the aid of the sphere and his crystalline servants, the Krargs, he will spread his own mind throughout the Universe and become immortal. However, when the Doctor pretends to be stupid, the sphere fails to drain his mind completely. He thus survives, and since there's a copy of his mind inside the sphere, he is able to use the resonance to turn Skagra's possessed slaves against him. Skagra is imprisoned by his own Ship, and Chronotis returns to Earth to resume his peaceful retirement.moreless

England, the near future. Something inhumanly strong and resilient is raiding scientific establishments across the country. Can the new Doctor help UNIT? And what are the staff of the secret government think tank working on in their spare time?

Trying to take his companions to Mars, the Doctor instead ends up on the Moon in the year 2070. Earth's weather is controlled by means of gravity waves directed from an internationally-run Moonbase, but the staff of the Moonbase are suffering from a mysterious outbreak of plague, and moments after the Doctor and his friends enter the entire Moonbase is placed under quarantine. The Doctor offers to help find a cure for the plague, which he suspects is no plague at all – and he's right. The base's food supplies have in fact been poisoned by Cybermen from the colony world Telos, who intend to seize control of the Graviton and use it to destroy the Earth – not as revenge for the destruction of Mondas, but simply and logically to eliminate a potential threat.moreless

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